89902281

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 145331200

約数和(自身を除く): 55428919

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 399, 417, 973, 1621, 2641, 2919, 4863, 7923, 11347, 18487, 30799, 34041, 55461, 92397, 215593, 225319, 646779, 675957, 1577233, 4281061, 4731699, 12843183, 29967427, 89902281]

約数ペア:

[(1, 89902281), (3, 29967427), (7, 12843183), (19, 4731699), (21, 4281061), (57, 1577233), (133, 675957), (139, 646779), (399, 225319), (417, 215593), (973, 92397), (1621, 55461), (2641, 34041), (2919, 30799), (4863, 18487), (7923, 11347)]